Doorcheck means



G. MADLAND DOORCHECK MEANS Jan. 31, 1933.

Filed Oct. 10, 1929 2 Sheets-Sheet l Jan. 31, 1933. G MADLAND 1,895,856

DOORCHECK MEANS Filed Oct. 10, 1929 2 Sheets-Sheet 2 Game/s1. MQDLFIND WWW A Patented Jan. 31, 1933 UNITED STATES P N QF GABRIEL MADLAND, OF CHICAGO, ILLINOIS, ASSIGNOR TO CAMEL COMBAKY A CORPORATION OF- ILLINOIS nooncnnox MEANS This invention relates to side door construction.

V The present invention relates more particularly to means for reducing or checking the speed of side doors for railway car's,known as box or house cars, when the doors approach theend of their travel.

It is a rule of the railroads that house cars are not to be shifted or started in transit un- W less the doors forsaid 'carsare latched. In

spite of this rule trainmen frequently handle house cars in a careless manner, resulting in damage to the cars and consequent loss to the railroads when movement of cars is begun without latching of. the doors thereon. Whenthe doors are in closed orpartially closed position, sudden forward movement of the cars causes'the doors to move rearwardly with such speed as to exert a great force of impacton the back stops for the doors. When it is considered that steel (10015 weigh between four hundred (400) and six hundred (600) pounds the force of this impact will be appreciated. As a consequence stops the latter have frequentlybeen sheared off the car,,the doorhas been damaged and other serious injury has resulted.

This invention has for .one of its objects 7 a construction'whereby the above mentioned defects are obviated.

A further object is to provide means po-' or reducing means which'may be readily attached to the existing car and door structures without necessitating modification of these structures. Y

It is'also an objectto provide a door checking means which will cause the door at the end of its movement to traverse an upward incline to reduce the speed of the door.

59 It is a furtherobject to provide suchmeans of the impact between the doors and theirback Application filed October 10, 1929. Serial No. 398,752..

7 which is readily applicable both top and bottom hung sliding doors.

A' further object "is toprovide a door sup 7 ported for sliding movement on a plurality of rollers of d'ifi'erent diameters, the rollers r of smaller diameter being effective in check-- ing the speed-of the'doon.

A further object is to provide }a hanger which is strong, compact efiicient in operation and easily made.- 1

Further objects will appear as the descrip tion proceeds. In the accompanyingdrawings which illustrate a preferred embodiment of thisinvention and in whichsimilar reference numeralsrefer to similar parts {n the different views: I

Figure 1 shows a partial elevational view of a car having a door mounted thereon, said door beingshovvn in closed position and have ing applied thereto door checkingin'eans.

Figure 2 is a side elevational view, corresponding to Figure 1, but showing the door in open position and the door checking means inoperative relation. y

'cal sectional View taken Figure 3'is a vert1 on line 3-8 of Figure'L Figure 4 is a front elevation of the hanger for the doorylooking at Figure 3 "from the: right. Figure 5 Figure 3. V Y

Figure. 6 is a sectional view on line 6 6 ofFigure2. v w" 1 Figure 7 is a modification,'showing'theap is asectional View oniline 5-5 of V plication of the invention to a top supported door. 7 a With reference to Figures 1 to 6 inclusive, the numeral 10 designates the sidewall of a house car. A door opening'll is provided in the side wall, said opening being adapted to be closed by a door-12. In its closed position the door is adapted to be ifastened to the car by fastening means designated generally by the reference numeral 13. Supporting thedoor for horizontal sliding movement are a plurality of hangers 14, one hanger being se cured adjacent each of the lower corners of the door. Each of these hangers isp'rovided with a pair of rollers15 and 16. .The roller 15 is rotatably mounted on a pin-l7,'fixedly 0 i secured in hubs 19 and 20, forming a part of 7 peened head-27, and shoulder 28, formed on the hanger. The roller 16, which is of less diameter than the roller 15, is rotatably mounted on a pin l8,secured in a hub 22,'and in one Wall of a housing 25, forming part of the hanger. It will be noted that the roller 15 is positioned between two-relatively offset walls of the hanger so that, in effect, it is maintained within a housing 21 in said hanger. The hub 22, as well as the housing 25, is formed as part of a flange or plate depending from the housing 21. 'The pin 17 for the roller 15 is fastened to the hub 19 by means of a pin 26, while the pin 18 for the roller 16, is secured in position between the said pin. Vertical ribs24; are providedon the ported in position by attachment to the ver-.

hangers for :the purpose of lending addi tional strengththereto. The hangers are se-, 2.0,- cured'to thedoors as indicated by means of.

rivets 30, which pass throughholes 29 formed in the hangers. r V

I Therollers' 15 are adapted to travel on a main track31. This track comprises a horirectly andthe vertical leg33. I The horizontal leg is provided with adownturned flange 34" adapted to coact with the inwardly and upwardly turned flanges 36 formed on the,

hanger.. The-track 31 is secured in position by mea'nsof rivets 38 passing through the vertical leg of said track and is supported on track brackets .35; -Additional rivets 37 are used'to secure the track brackets: to the web of a channel shaped sill member43. I

- A supplemental track 39 is provided, which consists in the embodiment shown, of an anglemember having one'of its, legs 42 positioned vertically and the other positioned horizontally. The supplemental track is supticalleg of the main track by meansof the 'rivets38 and shown in Figure'6 of the drawings. "The horizontal leg tOof the supplemental track has its upper surface inclined as shown at 41 in Figure 3 of the drawings.

Supported upon the-horizontal leg 44- of the channel sill 43 is the flooring 46. This flooring projects somewhat beyond the web of the sill and is protected by the horizontal portion 47 0f a protecting plate which is downturned asindicated at 48, over the edge its vertical-upstanding leg to the. vertical I of the fiooring. Door stops 49, 49, etc. are positioned as shown to prevent the door from leaving the track in its opening movement.

Figure 7 illustrates a modification of the invention. In this modification a top supported door is employed. This door is adapted to travel upon the horizontal leg 56 of the track 54. The track is secured through depending leg 52 of the Z shapedside plate 50 by rivets or the like 58. The web 53 of the side plate is positioned horizontally and the other leg 51'extends vertically opposite to zontal leg 32, which supports theroller di-.

the leg 52. The door is supported for move= ment on the'track 54 by means of a hanger 59.

of smaller diameter than the roller 61. This roller 63 is secured to the hanger by means of the pin 64. Fastened to the vertically 'depending flange 57 of the track is a supplemental track 65. This track is positioned withone of its legs extending horizontally.

-The upper surface of'this leg is inclinedupwardly in the direction of the opening movement of the door in the'samemanner asithe.

horizontal leg 40 of the track 39.

The supplemental rollers, together-with the supplemental'tracks, constitute the door checking means. 7 The operation of this meanswill be made clear from the following:

Assuming the door to be in closed position,

and desiring to open the door, the latch is released and the door moved toward the right in Figure 1 of the drawings. During the greater portion of-athis 1novement the door will be supported upon the main rollers 15. Norinal movement of the doorwill continu'eupon the rollers 15 until the supplemental/roller 16', carried byithe-hanger at theright of the door 12, comes into engagement with the sup plemental track 39, Continued movementof the door will cause the roller 16 to ride-up the. inclined, portion of the supplemental track.

This movement of the roller '16'on the inclined portion causes the door and the main roller to be raised. The main rollers is now ineffective to support the door and the'supplem'ental roller carries the door'onthe in clined track. The supplementalroller, however, is smaller in diameter than the'main' roller and this fact, together with the fact that the supplemental roller'is riding up an inclined plane," will bring about 'a' checking or reductionin the speedof the door; As a. result'of this, possibility of shearing oft-he back stops 49, 419, etcwith its attendant difii- 1 'culties, will be obviated. While the reducing mechanism has been shown located so that it becomes effectivein' the openingmovement of the door, it is apparent it-may be employed so as to be effective in the closing movement of the door as well. i

"Although I have herein shown and described what I now consider the preferred manner of carrying out the invention, the same is merely illustrative, and I contemplate all changes and modifications that come with- V in thescope of the claims appended hereto. 7

I claim 1.. Check means for the horizontally'slid 'ing. door of a box car, said door being-sup ported on a track by means of hangers provided with rollers, comprising an auxiliary roller provided on said door and an inclined portion provided on said track, the inclined portion comprising an angular member secured to the track and embodying a horizontal flange the upper surface of which is inclined, said auxiliary roller having engagetional roller being inoperative during the ment with the inclined portion of the track durin a part of the movement of the door.

2. heck means for the horizontally sliding door of a house car, said door being supported on a track by means of hangers provided with rollers, comprising an auxiliary roller provided on said door and an inclined portion provided on the car, said inclined portion comprising a horizontal flange inclined upwardly in the direction of the opening movement of the door, said auxiliary roller and said inclined portion being adapted for engagement.

3. Check means for the horizontally sliding door of a house car, said door being supported on a track by means of hangers provided with rollers, comprising an auxiliary roller and aninclined portion provided on said track,said inclined portion comprising ahorizontal flange secured to said track and positioned below the roller supporting part of the track, the upper surface of said flange being inclined upwardly in the direction of the opening movement of the door, said auxiliary roller and said horizontal flange adapted for engagement to check the speed of the door.

4. The combination with the door of a house car, the door being supported for horizontal sliding movement upon a main track by rollers carried by hangers secured to said door, of check means for said door, comprising a roller of smaller diameter than the supporting rollers and carried by said door,

adjacent to one of said supporting rollers, auxiliary track means secured to said main track and provided with an inclined portion, said smaller roller having engagement with said inclined portion of the auxiliary track means for a part of the movement of the door, whereby to lift the door to disengage the said adjacent supporting roller from the main track and to support the door on the auxiliary track by the smaller roller.

5. A door for a house car, hangers secured to said door, housings on said hangers, main rollers mounted in said housings, a; main track on which said rollers are adapted to travel, an additional roller mounted onone of said hangers adjacent to its main roller,

said additional roller being inoperative durtional roller.

rollers mounted on saidphousing y a n: track-on which said" rollers are adapted to travel, an additional roller, a housing on oneof said hangers, said additional roller being mounted in said latter housing, said additravel of the door on said adjacent'main roller, a supplemental track,- saidadditi'onal roller having engagementwith the supple to'said door, housings on said hangers, main rollers mounted on said housmgs; a Ema-1n track on which said rollers are adapted to" travel, an additional roller mounted on one i of said hangers adjacent to amain roller,

said additional roller being of smaller diameter than said main rollers and being inoperative during the travel of the door on the adjacent main roller, a supplemental track, said additional roller having engagement.

with the supplemental track for a portion of 1 the movement ofthedoor and the adjacent main roller being disengaged from said mainf trackduring such engagement of the 8. A door for a house car, hangers secured to'said door, housings-on said hangers, main rollers mounted in said housings, a main,

track on which said rollers are adaptedjto travel, an additional roller mounted on one j of said hangers adjacent to a main roller, said additional-roller being inoperative during the travel of the door on the adjacent main roller, a supplemental trackhaving a part thereof inclined, said additional roller having engagement with the inclined part of the supplemental track for a portion of the movement of the door, the adjacent main roller being rendered inoperative by such en gagement.

9. A door ers mounted in said housings, a main tra'ck for a house car, hangerssecured to said door, housmgs on 831d hangers,- rollon which said rollers travel for a portion of v the movement of the door, additional rollers of smaller diameter than said former rollers mounted on said hangers, said additional rollers being inoperative during the travel of the door on the first mentioned rollers, a supplemental track having a part thereof in clined, one of said additionalrollers having engagement with the inclined part of the supplemental track for a portion of the movement of the door, said engagement rendering one of the main rollers inoperative.

10. A door check for the horizontally sliding door of a railway car, comprising a hanger, said hanger being provided witha' housing, a roller mounted in saidhousing, a plate depending from said housing, said plate being provided with a housing, a roller mounted in said second housing, and smaller in diameter than said first mentioned roller; and an upwardly inclined, elongated member adapted forengagement with said smaller roller.

, 11. A check for the horizontally sliding door of a railway car comprising rolling means carried by said door, sa1d rolling means beinginoperati-ve for a portion of the.

travel. of: the door; and means mounted on sand 'car having an lnclined member, said rolling means having operative engagement v v Withsaid inclined member adjacent the fully openpisit-ion of said door to reduce the speed'thereof.

and State of Illinois,this 8th day of October, 1929. i V GABRIEL MADLAND.

Signed at Chicago, in the countyof Cook 

